CN113726053A - Rotor structure of automobile electronic water pump - Google Patents
Rotor structure of automobile electronic water pump Download PDFInfo
- Publication number
- CN113726053A CN113726053A CN202111288405.6A CN202111288405A CN113726053A CN 113726053 A CN113726053 A CN 113726053A CN 202111288405 A CN202111288405 A CN 202111288405A CN 113726053 A CN113726053 A CN 113726053A
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- CN
- China
- Prior art keywords
- silicon steel
- steel sheet
- annular silicon
- annular
- central shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a rotor structure of an automobile electronic water pump, which comprises a shell, an iron core and a rotating shaft, wherein the iron core is fixedly arranged in the shell and is characterized in that the iron core comprises at least two groups of silicon steel sheets which are mutually fixed and overlapped, each group of silicon steel sheets is formed by fixedly overlapping a plurality of annular silicon steel sheets, an inner hole of each annular silicon steel sheet is fixedly overlapped to form a central shaft hole, a pressing lug which protrudes inwards in the radial direction is uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular manner, the upper annular silicon steel sheet of each annular silicon steel sheet rotates in a fixed direction and at a set angle and is fixedly overlapped on the pressing lug of the first annular silicon steel sheet and the last annular silicon steel sheet in each group of silicon steel sheets on the annular silicon steel sheet in the axial direction, and the pressing lug in each group of silicon steel sheets forms a spiral structure in the axial direction; the pressing lug has the advantages that the contact surface of the pressing lug and the rotating shaft is small, so that large shaft pressing force can be generated on the rotating shaft after assembly is completed, and relative movement is not easy to occur during rotation.
Description
Technical Field
The invention relates to a rotor structure, in particular to a rotor structure of an automotive electronic water pump.
Background
The automobile heat management system mainly integrates the relationship between heat and an engine and the whole automobile from the viewpoint of system integration and integration, and mainly heats or cools the system and controls the temperature of the whole system, so that the aims of environmental protection and energy conservation of the whole automobile are optimized; the automobile electronic water pump is used as an important part of the system, and the controller drives the stator and the rotor to rotate so as to drive the impeller to enable cooling liquid to circularly flow in the whole system, so that the purposes of cooling and heating are achieved.
The automobile electronic water pump generally comprises a pump shell, a stator and a rotor structure, wherein the rotor structure generally comprises a shell, an iron core and a rotating shaft, and the rotating shaft is fixedly arranged in a central shaft hole of the iron core; the rotating shaft is directly plugged into the central shaft hole and fixedly connected with the iron core through interference fit, but in the production process, the interference magnitude of the rotating shaft and the iron core is difficult to control, the installation is difficult or the connection is loose, if the outer diameter of the rotating shaft is too large, the installation is difficult, and the re-processing is possibly needed; if the outer diameter of the rotating shaft is smaller, the condition that the connection is loose or the rotating shaft and the iron core move relatively during working is easy to occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing a rotor structure of an automobile electronic water pump, which is convenient to install and more stable in installation of an iron core and a rotating shaft.
The technical scheme adopted by the invention for solving the technical problems is as follows: a rotor structure of an automobile electronic water pump comprises a shell, an iron core and a rotating shaft, wherein the iron core is fixedly arranged in the shell, the rotating shaft is fixedly arranged in a central shaft hole of the iron core, the iron core comprises at least two groups of silicon steel sheets which are mutually fixedly overlapped, each group of silicon steel sheets is formed by fixedly overlapping a plurality of annular silicon steel sheets, inner holes of the annular silicon steel sheets are fixedly overlapped to form the central shaft hole, at least three compression lugs which radially and inwards protrude are uniformly and annularly arranged on the inner hole wall of each annular silicon steel sheet, the annular silicon steel sheet on each group rotates in a fixed direction and at a set angle and is fixedly overlapped on the annular sheet, the set angle ranges from 10 degrees to 120 degrees, and the compression lugs on the annular silicon steel sheet on each group and the compression lugs on the annular silicon steel sheet on the previous group are staggered And the compression bumps of the first annular silicon steel sheet and the last annular silicon steel sheet in each group of silicon steel sheets are overlapped with each other along the axial direction of the central shaft hole.
The shell comprises a lateral part shell, a first end cover and a second end cover, wherein the first end cover is located at one end of the lateral part shell, the second end cover is located at the other end of the lateral part shell, the lateral part shell is fixedly sleeved on the outer side of the iron core, a first through hole is formed in the middle of the first end cover, a first sheath is arranged in the first through hole in an extending mode towards the inside of the central shaft hole, a second through hole is formed in the middle of the second end cover in an extending mode, a second sheath is arranged in the second through hole in an extending mode towards the inside of the central shaft hole, the first sheath is fixedly inserted into the inside of one end of the central shaft hole, the second sheath is fixedly inserted into the inside of the other end of the central shaft hole, a first internal thread is arranged on the inner hole wall of the first sheath, a second internal thread is arranged on the inner hole wall of the second sheath, and the rotating shaft sequentially penetrates through the first through hole, The central shaft hole with the second through-hole, the pivot in proper order with first internal thread, be located the middle section in central shaft hole compress tightly the lug with the mutual interference fit of second internal thread. The inner hole walls of the first sheath and the second sheath are provided with internal threads which can be in interference fit with the rotating shaft; and the first sheath and the second sheath are used for transition connection, so that the rotating shaft is mutually and tightly matched with the first end cover, the iron core and the second end cover.
The outer hole wall of the first sheath is provided with a first external thread which is matched and installed with the compression lug on one side of the middle section of the central shaft hole, and the outer hole wall of the second sheath is provided with a second external thread which is matched and installed with the compression lug on the other side of the middle section of the central shaft hole. The outer hole walls of the first sheath and the second sheath are provided with outer threads, and the outer threads are respectively matched with the spiral pressing lug in a spiral mode to be installed and fixed, so that the installation is convenient, and the fixing effect is good.
The set angle is 90 degrees, and three compressing convex blocks which are radially and inwards protruded are uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular shape. During processing, four positioning points which are respectively positioned at four corners of the square are arranged on the annular silicon steel sheet and are matched and positioned with four positioning blocks correspondingly arranged on the external processing tool head, so that the rotary positioning of the processing tool head is relatively convenient and relatively stable during processing.
The set angle is 10 degrees, and four compressing convex blocks which are radially and inwards protruded are uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular shape.
The set angle is 120 degrees, and five compressing convex blocks which are radially and inwards protruded are uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular shape.
Compared with the prior art, the iron core has the advantages that the iron core comprises at least two groups of silicon steel sheets which are mutually fixedly overlapped, each group of silicon steel sheets is formed by fixedly overlapping a plurality of annular silicon steel sheets, the inner holes of the annular silicon steel sheets are fixedly overlapped to form a central shaft hole, at least three pressing lugs which are radially and inwards protruded are uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular mode, the upper annular silicon steel sheet of each annular silicon steel sheet rotates in a fixed direction and at a set angle and is fixedly overlapped on the annular silicon steel sheet, the pressing lugs on each annular silicon steel sheet and the pressing lugs on the upper annular silicon steel sheet are arranged in a staggered mode, the pressing lugs of the first annular silicon steel sheet and the last annular silicon steel sheet in each group of silicon steel sheets are mutually overlapped along the axial direction of the central shaft hole, at least two groups of silicon steel sheets are adopted, and the pressing lugs of the first annular silicon steel sheet and the last annular silicon steel sheet in each group of silicon steel sheets are mutually overlapped along the axial direction of the central shaft hole The design of the shaft makes the installation of the rotating shaft in the central shaft hole more stable, and ensures the concentricity of the pressing shaft; because the pressing lug is of an integral spiral structure after final molding and has a relatively small contact surface with the rotating shaft, the pressing lug can generate relatively large shaft pressing force on the rotating shaft after assembly is completed, so that relative movement is not easy to occur during rotation; and the pressing convex block is obtained by punching each annular silicon steel sheet by a punch with a corresponding groove on the outer part.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a partial cross-sectional view of an exploded structure of the present invention;
fig. 4 is a schematic view of a middle ring-shaped silicon steel sheet according to an embodiment.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows: as shown in fig. 1 to 4, a rotor structure of an automotive electronic water pump comprises a housing, an iron core 1 and a rotating shaft 2, wherein the iron core 1 is fixedly installed in the housing, the rotating shaft 2 is fixedly installed in a central shaft hole 11 of the iron core 1, the iron core 1 comprises at least two groups of silicon steel sheets which are mutually fixedly overlapped, each group of the silicon steel sheets is formed by fixedly overlapping a plurality of annular silicon steel sheets 3, an inner hole 31 of each annular silicon steel sheet 3 is fixedly overlapped to form the central shaft hole 11, three pressing lugs 32 which are radially and inwardly protruded are annularly and uniformly arranged on the inner hole wall of each annular silicon steel sheet 3, the previous annular silicon steel sheet 3 of each annular silicon steel sheet 3 rotates in a fixed direction and at a set angle and is fixedly overlapped on the previous annular silicon steel sheet 3, the set angle is 90 degrees, the pressing lugs 32 on each annular silicon steel sheet 3 are staggered with the pressing lugs 32 on the previous annular silicon steel sheet 3, the pressing lugs 32 of the first annular silicon steel sheet 3 and the last annular silicon steel sheet 3 in each group of silicon steel sheets are mutually overlapped along the axial direction of the central shaft hole 11;
the outer shell comprises a lateral shell 41, a first end cover 42 positioned at one end of the lateral shell 41 and a second end cover 43 positioned at the other end of the lateral shell 41, the lateral shell 41 is fixedly sleeved on the outer side of the iron core 1, a first through hole 421 is formed in the middle of the first end cover 42, a first sheath 422 is arranged in the first through hole 421 in a manner of extending towards the inside of the central shaft hole 11, a second through hole 431 is formed in the middle of the second end cover 43, a second sheath 432 is arranged in the second through hole 431 in a manner of extending towards the inside of the central shaft hole 11, the first sheath 422 is fixedly inserted into one end of the central shaft hole 11, the second sheath 432 is fixedly inserted into the other end of the central shaft hole 11, a first internal thread 423 is arranged on the inner hole wall of the first sheath 422, a second internal thread 433 is arranged on the inner hole of the second sheath 432, the rotating shaft 2 sequentially penetrates through the first through hole 421, the central shaft hole 11 and the second through hole 431, and the rotating shaft 2 sequentially cooperates with the first internal thread 423, The pressing lug 32 and the second internal thread 433 which are positioned in the middle section of the central shaft hole 11 are in interference fit with each other;
the outer hole wall of the first sheath 422 is provided with a first external thread 424 which is fitted with the pressing projection 32 located at one side of the middle section of the central shaft hole 11, and the outer hole wall of the second sheath 432 is provided with a second external thread 434 which is fitted with the pressing projection 32 located at the other side of the middle section of the central shaft hole 11.
Example two: the rest of the embodiment is the same as the first embodiment, except that the set angle is 10 °, and four pressing protrusions 32 protruding radially inward are uniformly arranged on the inner hole wall of each annular silicon steel sheet 3 in an annular shape.
Example three: the rest of the embodiment is the same as the first embodiment, except that the set angle is 120 °, and five pressing protrusions 32 protruding radially inward are uniformly arranged on the inner hole wall of each annular silicon steel sheet 3 in an annular shape.
Claims (6)
1. A rotor structure of an automobile electronic water pump comprises a shell, an iron core and a rotating shaft, wherein the iron core is fixedly arranged in the shell, the rotating shaft is fixedly arranged in a central shaft hole of the iron core, and the rotor structure is characterized in that the iron core comprises at least two groups of silicon steel sheets which are mutually fixedly overlapped, each group of silicon steel sheets is formed by fixedly overlapping a plurality of annular silicon steel sheets, inner holes of the annular silicon steel sheets are fixedly overlapped to form the central shaft hole, at least three compression lugs which radially and inwards protrude are annularly and uniformly arranged on the inner hole wall of each annular silicon steel sheet, the annular silicon steel sheet on the upper annular silicon steel sheet on each annular silicon steel sheet rotates in a fixed direction and at a set angle and is fixedly overlapped on the annular silicon steel sheet, the set angle ranges from 10 degrees to 120 degrees, the compression lugs on each annular silicon steel sheet and the compression lugs on the upper annular silicon steel sheet on the lower annular silicon steel sheet on the upper annular silicon steel sheet on the lower annular silicon steel sheet on the upper annular silicon steel sheet on the lower annular silicon sheet on the upper annular silicon steel sheet on the lower sheet on the upper annular silicon sheet on the lower annular silicon sheet on the lower plate on the lower sheet on the lower plate on the lower annular silicon sheet on the lower plate on the upper plate on the lower plate The pressing lugs in each group of the silicon steel sheet groups are arranged in a staggered mode, and the pressing lugs of the first annular silicon steel sheet and the last annular silicon steel sheet in each group of the silicon steel sheet groups are overlapped with each other along the axial direction of the central shaft hole.
2. The rotor structure of an automotive electronic water pump as claimed in claim 1, wherein said housing comprises a side housing, a first end cap at one end of said side housing, and a second end cap at the other end of said side housing, said side housing is fixedly secured to the outside of said core, said first end cap has a first through hole extending to the inside of said central shaft hole, said first through hole has a first sheath extending to the inside of said central shaft hole, said second end cap has a second through hole extending to the inside of said central shaft hole has a second sheath extending to the inside of said central shaft hole, said first sheath is fixedly inserted into the inside of one end of said central shaft hole, said second sheath is fixedly inserted into the inside of the other end of said central shaft hole, said first sheath has a first internal thread on the inner wall thereof, the inner hole wall of the second sheath is provided with a second internal thread, the rotating shaft sequentially penetrates through the first through hole, the central shaft hole and the second through hole, and the rotating shaft sequentially cooperates with the first internal thread, the middle section of the central shaft hole, the compression lug and the second internal thread in interference fit with each other.
3. The rotor structure of an automotive electric water pump according to claim 2, characterized in that the outer hole wall of the first sheath is provided with a first external thread fitted with the pressing projection located on one side of the middle section of the central shaft hole, and the outer hole wall of the second sheath is provided with a second external thread fitted with the pressing projection located on the other side of the middle section of the central shaft hole.
4. The rotor structure of an automotive electronic water pump as claimed in claim 1, wherein the set angle is 90 °, and three pressing protrusions protruding radially inward are uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular shape.
5. The rotor structure of an automotive electronic water pump as claimed in claim 1, wherein the set angle is 10 °, and four pressing protrusions protruding radially inward are uniformly arranged on the inner hole wall of each annular silicon steel sheet in an annular shape.
6. The rotor structure of an automotive electronic water pump as claimed in claim 1, wherein said set angle is 120 °, and five pressing protrusions protruding radially inward are uniformly provided on an inner hole wall of each of said annular silicon steel sheets in an annular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288405.6A CN113726053A (en) | 2021-11-02 | 2021-11-02 | Rotor structure of automobile electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288405.6A CN113726053A (en) | 2021-11-02 | 2021-11-02 | Rotor structure of automobile electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113726053A true CN113726053A (en) | 2021-11-30 |
Family
ID=78686458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111288405.6A Pending CN113726053A (en) | 2021-11-02 | 2021-11-02 | Rotor structure of automobile electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113726053A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005168151A (en) * | 2003-12-02 | 2005-06-23 | Honda Motor Co Ltd | Rotary electric machine |
| JP2006217770A (en) * | 2005-02-07 | 2006-08-17 | Oriental Motor Co Ltd | Fastening structure of rotor core to shaft of motor |
| WO2018029263A1 (en) * | 2016-08-12 | 2018-02-15 | Thyssenkrupp Presta Teccenter Ag | Method for assembly of a rotor shaft of an electric motor |
| US20180159402A1 (en) * | 2015-05-18 | 2018-06-07 | Lg Electronics Inc. | Motor and method for manufacturing same |
| JP2018121440A (en) * | 2017-01-25 | 2018-08-02 | トヨタ紡織株式会社 | Assembly structure of end plate |
| CN208924041U (en) * | 2018-09-28 | 2019-05-31 | 浙江万冠电机有限公司 | A kind of brshless DC motor |
| JP2020005442A (en) * | 2018-06-29 | 2020-01-09 | 株式会社東芝 | Rotor of rotary electric machine |
| CN212114923U (en) * | 2020-05-11 | 2020-12-08 | 安徽皖南新维电机有限公司 | Closely-matched synchronous reluctance motor rotor |
| CN212518577U (en) * | 2020-08-06 | 2021-02-09 | 泰豪科技股份有限公司 | Novel high-speed rotor core mounting structure |
| CN213341784U (en) * | 2020-08-19 | 2021-06-01 | 盾安汽车热管理科技有限公司 | Rotor subassembly and electronic water pump |
-
2021
- 2021-11-02 CN CN202111288405.6A patent/CN113726053A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005168151A (en) * | 2003-12-02 | 2005-06-23 | Honda Motor Co Ltd | Rotary electric machine |
| JP2006217770A (en) * | 2005-02-07 | 2006-08-17 | Oriental Motor Co Ltd | Fastening structure of rotor core to shaft of motor |
| US20180159402A1 (en) * | 2015-05-18 | 2018-06-07 | Lg Electronics Inc. | Motor and method for manufacturing same |
| WO2018029263A1 (en) * | 2016-08-12 | 2018-02-15 | Thyssenkrupp Presta Teccenter Ag | Method for assembly of a rotor shaft of an electric motor |
| JP2018121440A (en) * | 2017-01-25 | 2018-08-02 | トヨタ紡織株式会社 | Assembly structure of end plate |
| JP2020005442A (en) * | 2018-06-29 | 2020-01-09 | 株式会社東芝 | Rotor of rotary electric machine |
| CN208924041U (en) * | 2018-09-28 | 2019-05-31 | 浙江万冠电机有限公司 | A kind of brshless DC motor |
| CN212114923U (en) * | 2020-05-11 | 2020-12-08 | 安徽皖南新维电机有限公司 | Closely-matched synchronous reluctance motor rotor |
| CN212518577U (en) * | 2020-08-06 | 2021-02-09 | 泰豪科技股份有限公司 | Novel high-speed rotor core mounting structure |
| CN213341784U (en) * | 2020-08-19 | 2021-06-01 | 盾安汽车热管理科技有限公司 | Rotor subassembly and electronic water pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211130 |